ios - 接收 web 套接字不能在 objective-c 中使用 socket.io 库

Question

我在 objective c 中使用 objective library，下面的代码可以很好地向服务器发出套接字，但它没有接收到从服务器发出的套接字。

Android 客户端使用相同格式的代码工作正常，所以我不认为错误与套接字命名有关。我只有“套接字打开”功能有问题。

Objective-C 客户端

NSURL* url = [[NSURL alloc] initWithString:@"http://192.168.0.109:3000"];
   [socket on:@"connection" callback:^(NSArray* data, SocketAckEmitter* ack) {
    NSLog(@"socket connected");
    // [socket emit:@"setUsername" with:typea];
    //   [socket emit:@"setUsername" with:@[@"test"]];
    // [manager emitAll:@"setUsername" withItems:@[@"tulasi"]];
    [manager emitAll:@"join_user" withItems:[SharedData sharedConstants].commonuserid];
    NSLog(@"socket connected:%@",[SharedData sharedConstants].commonuserid);
}];

    //    NSArray * idarray =[NSString stringWithFormat:@"@%@",[SharedData             sharedConstants].commonuserid];
      //    NSLog(@"id array is :%@",idarray);
     //
    //
  //[manager emitAll:@"join_user" withItems:@[@"commonuserid"]];



manager= [[SocketManager alloc] initWithSocketURL:url config:@{@"log": @YES, @"compress":            @YES}];  



socket = manager.defaultSocket;


[self->socket on:@"my_message" callback:^(NSArray* data, SocketAckEmitter* ack) {
    NSLog(@"join=>%@", data.description);
    messagestr =[[data valueForKey:@"message"]objectAtIndex:0];
   // NSString * names =[[data valueForKey:@"userfrom"]objectAtIndex:0];

    NSLog(@"receive response is:%@",messagestr);

    [chatarray addObject:messagestr];

    [typearr addObject:@"b"];
    NSLog(@"left array is:%@",chatarray);
    NSLog(@"type array is:%@",typearr);



}];



[socket on:@"my_message" callback:^(NSArray * _Nonnull arrayData, SocketAckEmitter * _Nonnull ack) {

    //NSLog(@"test:%@", [arrayData description]);
    //         [self updateTableView];
     //double cur = [[arrayData objectAtIndex:0] floatValue];
    messagestr =[[arrayData valueForKey:@"message"]objectAtIndex:0];
  //  NSString * names =[[arrayData valueForKey:@"userfrom"]objectAtIndex:0];

    NSLog(@"receive response message is:%@",messagestr);
   // NSLog(@"receive response name is :%@",names);


    [chatarray addObject:messagestr];

    [typearr addObject:@"b"];
    NSLog(@"left array is:%@",chatarray);
    NSLog(@"type array is:%@",typearr);

    //message

    //typing

    [self updateTableView];

}];
NSLog(@"didReceiveEvent()");


[self->socket connect];

Answer 1

假设您创建了一个名为 socket 的 SocketIOClient 对象 -

NSString *socketPath = @"http://192.168.0.109:3000";

NSURL* url = [[NSURL alloc] initWithString:socketPath];

if (! _socket) {
     NSLog(@"Creating new socket");
     _socket = [[SocketIOClient alloc] initWithSocketURL:url config:@{@"log": @NO, @"forcePolling": @YES}];
} else {
    NSLog(@"Using existing socket");
}

// Socket events
[_socket on:@"connect" callback:^(NSArray* data, SocketAckEmitter* ack) {
    NSLog(@"socket connected");
}];

[_socket on:@"disconnect" callback:^(NSArray* data, SocketAckEmitter* ack) {
    _socket = nil;
    NSLog(@"socket killed");
}];

[_socket on:@"error" callback:^(NSArray* data, SocketAckEmitter* ack) {
    NSLog(@"ERROR with socket %@", data);
}];

[_socket on:@"some message" callback:^(NSArray* data, SocketAckEmitter* ack) {
    NSLog(@"Some message arrived with data: %@", data);
}];

用“connect”而不是“connection”检查你的听力。

如果不是这样，也许可以发布您的错误消息。另外，你的 NSLog(@"didReceiveEvent()");在 block 外，所以它总是会被调用。